目的探讨益肾泄浊方对腺嘌呤所致的肾纤维化大鼠的作用及其机制。方法66只大鼠随机分为空白组、模型组、尿毒清组(1.6 g/kg)、益肾泻浊方低剂量组(0.65 g/kg)、益肾泻浊方中剂量组(1.3 g/kg)、益肾泻浊方高剂量组(2.6 g/kg),每组各11只...目的探讨益肾泄浊方对腺嘌呤所致的肾纤维化大鼠的作用及其机制。方法66只大鼠随机分为空白组、模型组、尿毒清组(1.6 g/kg)、益肾泻浊方低剂量组(0.65 g/kg)、益肾泻浊方中剂量组(1.3 g/kg)、益肾泻浊方高剂量组(2.6 g/kg),每组各11只。除空白组外,其余各组采用腺嘌呤(200 mg/kg)灌胃28 d诱导肾纤维化大鼠模型,造模后,尿毒清组和益肾泄浊方组给药治疗8周。测定SCr和BUN含量、24 h UTP和24 h mAlb水平;HE和Masson染色镜下观察肾脏组织病理变化;免疫组化测大鼠肾脏组织分泌型糖蛋白(Wnt1)、β-连环蛋白(β-catenin)的蛋白表达情况。结果与空白组比较,模型组、尿毒清组、低剂量组、中剂量组和高剂量组24 h UTP和24 h mAlb、SCr和BUN含量、Wnt1和β-catenin蛋白表达均升高(P<0.05);与模型组比较,尿毒清组、低剂量组、中剂量组和高剂量组24 h UTP和24 h mAlb、SCr和BUN水平、Wnt1和β-catenin蛋白表达均降低(P<0.05);与尿毒清组比较,低剂量组24 h UTP和24 h mAlb、SCr和BUN水平差异无统计学意义(P>0.05),Wnt1和β-catenin蛋白表达均降低(P<0.05),中剂量组和高剂量组24 h UTP和24 h mAlb、SCr和BUN水平、Wnt1和β-catenin蛋白表达均降低(P<0.05);与低剂量组比较,中剂量组和高剂量组24 h UTP和24 h mAlb、SCr和BUN水平、Wnt1和β-catenin蛋白表达均降低(P<0.05);与中剂量组比较,高剂量组24 h UTP和24 h mAlb、SCr和BUN水平、Wnt1和β-catenin蛋白表达均降低(P<0.05)。结论益肾泄浊方能够通过调控Wnt/β-catenin信号通路来阻抑肾纤维化的发展,从而起到保护肾脏的作用。展开更多
Objective To observe the changes in hepatic histomorphology and the differences in the expression of PD-1 after different moxibustion interventions in the immunosuppressed rabbits caused by cyclophosphamide and analyz...Objective To observe the changes in hepatic histomorphology and the differences in the expression of PD-1 after different moxibustion interventions in the immunosuppressed rabbits caused by cyclophosphamide and analyze the intervention effects of different moxibustion therapies.Methods A total of 40 big-ear white rabbits were randomized into 4 groups,i.e.a blank group,an immunosuppressed model group,a moxibustion group and a herbal-paste isolated moxibustion group,10 rabbits in each one.In the immunosuppressed model group,the moxibustion group and the herbal-paste isolated moxibustion group,the intraperitoneal injection with cyclophosphamide was administered consecutively for 7 days,60 mg/kg,and then,the immunosuppressed models were prepared.After the models were established successfully,in the moxibustion group and the herbal-paste isolated moxibustion group,moxibustion was administer at"Shénquè(神阙CV 8)""Guānyuán(关元CV 4)""Zúsānlĭ(足三里ST 36)""Píshū(脾俞BL20)"and"Shènshū(肾俞BL23)",once every other day,10 times in total.In the blank group and the immunosuppressed model group,the rabbits were restricted on the rabbit platform at the same time periods,without intervention.On the second day after the end of intervention,the animals were weighed and anesthetized,and the livers were extracted.After routine HE staining,the changes of hepatic histomorphology were observed under the microscope and the morphometric analysis was conducted in each group.Besides,PD-1 expression was observed with immunohistochemical method.Result Compared with the blank group,after modeling of each animal in three groups,the body mass decreased obviously(all P<0.01),the hepatocyte count decreased(all P<0.01),the inflammatory cellular infiltration area was increased obviously(all P<0.01),necrosis appeared in hepatic tissue and the positive expression of PD-1 in hepatic tissue was significantly increased(all P<0.01).After moxibustion intervention,compared with the immunosuppressed model group,the body masses of the animals were increased obviously(P<0.05,P<0.01),the hepatocyte count was increased obviously(both P<0.01),the infiltration area of inflammatory cells decreased significantly(both P<0.01)and the expression of the PD-1 decreased in the hepatic tissue(both P<0.05)in both the moxibustion group and the herbal-paste isolated moxibustion group.Compared with the moxibustion group,the animal body mass was higher obviously(P<0.01),the hepatocyte count was raised apparently(P<0.01)and the infiltration area of inflammatory cells were reduced obviously(P<0.05)in the herbal-paste isolated moxibustion group.Conclusion The intervention with different moxibustion therapies improves the condition of body mass reduction and hepatic tissue damage of the immunosuppressed rabbits caused by cyclophosphamide.The effect of herbal-paste isolated moxibustion therapy is better than that of simple moxibustion therapy.展开更多
文摘目的探讨益肾泄浊方对腺嘌呤所致的肾纤维化大鼠的作用及其机制。方法66只大鼠随机分为空白组、模型组、尿毒清组(1.6 g/kg)、益肾泻浊方低剂量组(0.65 g/kg)、益肾泻浊方中剂量组(1.3 g/kg)、益肾泻浊方高剂量组(2.6 g/kg),每组各11只。除空白组外,其余各组采用腺嘌呤(200 mg/kg)灌胃28 d诱导肾纤维化大鼠模型,造模后,尿毒清组和益肾泄浊方组给药治疗8周。测定SCr和BUN含量、24 h UTP和24 h mAlb水平;HE和Masson染色镜下观察肾脏组织病理变化;免疫组化测大鼠肾脏组织分泌型糖蛋白(Wnt1)、β-连环蛋白(β-catenin)的蛋白表达情况。结果与空白组比较,模型组、尿毒清组、低剂量组、中剂量组和高剂量组24 h UTP和24 h mAlb、SCr和BUN含量、Wnt1和β-catenin蛋白表达均升高(P<0.05);与模型组比较,尿毒清组、低剂量组、中剂量组和高剂量组24 h UTP和24 h mAlb、SCr和BUN水平、Wnt1和β-catenin蛋白表达均降低(P<0.05);与尿毒清组比较,低剂量组24 h UTP和24 h mAlb、SCr和BUN水平差异无统计学意义(P>0.05),Wnt1和β-catenin蛋白表达均降低(P<0.05),中剂量组和高剂量组24 h UTP和24 h mAlb、SCr和BUN水平、Wnt1和β-catenin蛋白表达均降低(P<0.05);与低剂量组比较,中剂量组和高剂量组24 h UTP和24 h mAlb、SCr和BUN水平、Wnt1和β-catenin蛋白表达均降低(P<0.05);与中剂量组比较,高剂量组24 h UTP和24 h mAlb、SCr和BUN水平、Wnt1和β-catenin蛋白表达均降低(P<0.05)。结论益肾泄浊方能够通过调控Wnt/β-catenin信号通路来阻抑肾纤维化的发展,从而起到保护肾脏的作用。
基金Supported by National Natural Science Foundation of China:81674062。
文摘Objective To observe the changes in hepatic histomorphology and the differences in the expression of PD-1 after different moxibustion interventions in the immunosuppressed rabbits caused by cyclophosphamide and analyze the intervention effects of different moxibustion therapies.Methods A total of 40 big-ear white rabbits were randomized into 4 groups,i.e.a blank group,an immunosuppressed model group,a moxibustion group and a herbal-paste isolated moxibustion group,10 rabbits in each one.In the immunosuppressed model group,the moxibustion group and the herbal-paste isolated moxibustion group,the intraperitoneal injection with cyclophosphamide was administered consecutively for 7 days,60 mg/kg,and then,the immunosuppressed models were prepared.After the models were established successfully,in the moxibustion group and the herbal-paste isolated moxibustion group,moxibustion was administer at"Shénquè(神阙CV 8)""Guānyuán(关元CV 4)""Zúsānlĭ(足三里ST 36)""Píshū(脾俞BL20)"and"Shènshū(肾俞BL23)",once every other day,10 times in total.In the blank group and the immunosuppressed model group,the rabbits were restricted on the rabbit platform at the same time periods,without intervention.On the second day after the end of intervention,the animals were weighed and anesthetized,and the livers were extracted.After routine HE staining,the changes of hepatic histomorphology were observed under the microscope and the morphometric analysis was conducted in each group.Besides,PD-1 expression was observed with immunohistochemical method.Result Compared with the blank group,after modeling of each animal in three groups,the body mass decreased obviously(all P<0.01),the hepatocyte count decreased(all P<0.01),the inflammatory cellular infiltration area was increased obviously(all P<0.01),necrosis appeared in hepatic tissue and the positive expression of PD-1 in hepatic tissue was significantly increased(all P<0.01).After moxibustion intervention,compared with the immunosuppressed model group,the body masses of the animals were increased obviously(P<0.05,P<0.01),the hepatocyte count was increased obviously(both P<0.01),the infiltration area of inflammatory cells decreased significantly(both P<0.01)and the expression of the PD-1 decreased in the hepatic tissue(both P<0.05)in both the moxibustion group and the herbal-paste isolated moxibustion group.Compared with the moxibustion group,the animal body mass was higher obviously(P<0.01),the hepatocyte count was raised apparently(P<0.01)and the infiltration area of inflammatory cells were reduced obviously(P<0.05)in the herbal-paste isolated moxibustion group.Conclusion The intervention with different moxibustion therapies improves the condition of body mass reduction and hepatic tissue damage of the immunosuppressed rabbits caused by cyclophosphamide.The effect of herbal-paste isolated moxibustion therapy is better than that of simple moxibustion therapy.
